HTTP response header

The Server response-header field contains information about the software used by the web server to handle the request.

Header usage statistics

Server response header information and usage statistics.

Websites using header Server 9,977,712
Percentage of websites that use Server header 91.80%
Total discovered header values 33,132
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Connected technologies

Technologies that utilize the header

Apache, category Web Servers, total 3,668,704 websites
Amazon Cloudfront, category Content Delivery Networks, total 125,525 websites
Amazon S3, category Miscellaneous, total 68,792 websites
Akamai, category Content Delivery Networks, total 50,321 websites
Amazon ELB, category Load Balancer, total 46,137 websites
Amazon EC2, category Web Servers, total 31,655 websites
Akka HTTP, category Web Application Frameworks, total 199 websites
AOLserver, category Web Servers, total 73 websites
Airee, category Content Delivery Networks, total 26 websites
Allegro RomPager, category Web Servers, total 13 websites

Distribution by websites popularity

Server detection in the top websites by popularity

Top 10k sites 12,436 websites
Top 100k sites 112,412 websites
Top 1m sites 1,058,432 websites

Websites utilizing Server

List of websites that use Server header

Domain Country Rank Contacts United States of America 1 United States of America 3 United States of America 4 United States of America 4 United States of America 5 United States of America 5
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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common Server header values

Header value Value prevalence
Apache 27.48%
nginx 20.97%
cloudflare 9.26%
openresty 3.96%
Squarespace 3.45%
LiteSpeed 2.39%
Microsoft-IIS/8.5 2.19%
nginx/1.16.1 1.99%
Microsoft-IIS/10.0 1.57%
GSE 1.15%
Apache/2 1.03%
nginx/1.18.0 0.82%
lapis 0.75%
AmazonS3 0.66% 0.56%
nginx/1.19.5 0.56%
Microsoft-IIS/7.5 0.55%
Apache/2.4.25 (Debian) 0.55%
Apache/2.4.29 (Ubuntu) 0.53%
ghs 0.47%